Machine for working glass



Aug. 23, 1932.

E ROIRANT MACHINE FOR WORKING GLASS Filed March 12, 1931 I'bI H ii .Ylll i Patented Aug. 23, 1932 UNITED STATES PATENT OFFICE DE GONSTBUCTIONS DAPPABEILS MECANIQUES POUR LA VERRERIE, OF IPARIS,.

' FRANCE MACHINE non wonxnve GLASSH Application filed March 12, 1931, Serial No. 522,098; and in France May 5, 1930.

The invention relates to anautomatic machlne. for working glass, comprising receivers or moulds having a circular motion and receivlng, by gravity, a charge of glass from a feeder.

ment, effected in the reverse direction to the movement of the said drum so as to obtain the stoppage of the neath the feeder at the pointof reception of the glass. y

In one kind of known apparatus, the operation of which corresponds to this principle of combination of movements, a main inconvenience resides in the fact that the driving motor is movable, because it is carried by a frame having one of the compound motions.

In other known constructions, the motor is fixed, but the constant connection which ought'to exist starting from the common motor, between the movement of rotation of the drum carrying the moulds and the movement of the carriage supporting this latter,

is realized by the relative sliding of gear wheels, constantly is mesh, and thus placed in unsuitable conditions of Work Further, in these same machines, the alternate movement of the carriage is rectilinear; the superposition of the trajectories of the two movements is only approximate, so that the stoppage of the successive moulds is not absolute.

On the other hand, in these two types of apparatus, the alternate movement, with pe riods of rest, is obtained by the action of a cam path. It follows from such a construction that the duration of these stops, even their position, are invariable a c m path having a certain outline.

Such constructions cannot therefore be adapted practicallyto local or momentary circumstances in the working of' glass, which mould which is arriving be- 7 the iriventior is are frequently modified under conditions which cannot be foreseen, of such kind that, according to the weight of glass delivered to each mould, the time of rest may be too long, too short, even useless, without it being possible to apply the necessary correction rapidly, that is to say, without interrupting the cycle of continuous manufacture. The present invention has for its object to avoid the inconveniences characteristic of each of the knownsystems (mobilityof the motor, stoppage of the moulds not absolutely in the position for reception) and it is distinguished advantageously from these latter by the production of an apparatus which enables the position and the duration of stoppage of the mould beneath the feeder to be easily regulated, even during the working of the machine, and without it being necessary to interfere with the adjustment of the feeder, pable of upsetting thecorrect delivery of the parisons.

In its principle, the machine according to characterized in that the drum' carrying the moulds is supported by and turns upon a plate having itself an oscillating motion of circular trajectory, the two movements being produced by a common fixed. motor, which, on the one hand, communicates a continuous rotation to the mould carriers by any suitable connection, on the other hand drives a crank disc which by 'means of a link, causes the alternate circular motion of the oscillating plate.

The position ofthe crank pin is adjustan. adjustment which would be caable, so that the time of stopping or slowing down can be easily modified, because this latter is a function of the amplitude of the to-and-fro travel.

The length of the link is likewise adjustable, so that the position of stoppage of the moulds may also be varied.

The following description of a, machine made according to the present invention will make clearly apparent, with reference to the accompanying drawing, the simplicity of construction. and. the advantages of working of the apparatus. a

In this drawing:

Fig. 1 is a diagrammatic view showing the machine in sectional elevation, limited to that which concerns the invention.

Fig. 2 is a corresponding plan of the same.

Fig. 3 is a diagrammatic side view.

The machine comprises a base A, which may be carried by wheels, to facilitate moving the same. 4

Upon this base rests a motor B, the shaft D of which carries two endless screws E and F.

The endless screw E gears with a worm Wheel G, keyed upon a shaft H, which drives another shaft I, mounted between two Cardan joints JJ'.

As will be hereinafter explained, the joint J has an alternate movement upon a circular trajectory at the same time as the shaft I is rotating. Underthese condition-s, the joint I occupying a fixed position, it is necessary that the length of the shaft I may vary constantly. Any suitable apparatus may be employed for this purpose. In the example rzhown in the drawing, the shaft I is made in two parts. The one terminates with a tubular part in which the end of the other part can slide. A spring 7' in compression interposed between an abutment b and the tubular part, tends to constantly move apart the two parts of the shaft I, thus assuring the permanent compensation of variations of length of this shaft.

A key 0 transmits rotation to the driven part of the shaft I, towards the machine. Rotary motion is thus transmitted to a com- .eal pinion K, gearing with a toothed ring I,

fixed rigidly to a drum P, carrying the moulds M.

The second endless screw F on the shaft D, drives a worm wheel N, carrying, directly or by means of a plate, an eccentric in O. The position of'this latter is adustable from the periphery to the centre of the -wheel or plate. This movement will be effected for example, along a radial groove 0 and the fixture of the pin, at the desired point, will be caused by any suitable clamping device. Upon the pin 0, is pivoted a link Q, pivoted at its other end upon a projection R, fixed to an oscillating plate S. This link is adjustable in length. for example by means of a sleeve Z, rotating upon two opposite screw threads.

The plate S, can rotate upon the base A, due to the ball bearing T. In operation, the

V link Q imparts to it a to-and-fro rotary mo- "tion upon the axis a-b.

The plate, S, carries a -central co-axial column V. upon which rotates the drum P carrying the moulds, the ball bearing T, being provided for this purpose.

The shaft I, which drives the drum P with a rotary motion itself receives an alternate Lava-we angular displacement around the joint J, in the course of which it moves over a certain sector. The compensating apparatus having a spring, above referred to, or any other device assuring the automatic com ensation of variations of length of the sha t I, renders this alternate motion possible.

It is seen that there exists a certain constant ratio, between. the speed of the shaft D and that of the wheel N: this ratio. of speed is chosen such that to one turn of the wheel N, corresponds the substitution of one mould for the preceding mould under the feeder. It will be understood in addition, that the position of the pin 0 and the length of the link Q may be'regulated so that at the instant when a mould arrives under the feeder, the angular speed of driving communicated to the oscillating plate S, by the link, is absolutely equal in value to the angular speed of the mould carriers, but in a contrary direction, so that the mould in question is really absolutely at rest at the moment of charging and remains there during the time necessary for total and correct reception of the glass.

It is possible to move the crank pin 0 to the centre of the wheel N. In this case, the to-and-fro movement is annulled and the drum carrying the moulds rotates without stopping. The adjustment of the link is therefore, particularly useful, for it is necessary that the mould which is about to receive a parison passes beneath the delivery point at the precise instant of delivery of this'parison. Now, the adjustment of the link enables the exact angular movement to be given precisely to the whole, thanks to which this coincidence is exactly effected. This possibility of adjustment, for a limited case of working, corresponding to the continuous effective rotation of the drum carrying the moulds, is not found in known machines; it constitutes another advantage of the assets of the new machine.

I claim 1. An automatic machine for the manufacture of glass objects of the type in which the glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor on this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, means driven by the said motor and imparting toqthe mouldcarrier acontinuous movement of rotation, means for'imparting, from the motor to the said rocking'plate a circular reciprocating movement, such that. by composition of both movements, the mould arriving beneath the feeder is at rest at the charging point and remains there during the reception of the charge of glass distributed by the feeder into the said mould;

2. An automatic machine for the manufacture of glass objects of the tyne in which the glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor on this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, means driven by thesaid motor and imparting to the mould-carrier a continuous movement of rotation, a crank plate driven by the said motor, a link pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking plate.

3. An automatic machine for the manufacture of glass objects of the type in which the glass is received by gravity in receivers,

mou ds and other vessels, comprising aframe, a fixed motor on this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, means driven by the said motor and imparting to the mould-carrier a continuous movement of rotation, a crank plate driven by the said motor, a link pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking plate, melins for adjusting the length of the said nn 4. An automatic machine for the manufacture of glass objects of the type in which the glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor on this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, means driven by the said motor and imparting to the mould-carrier a continuous movement of rotation, a crank plate driven by the said motor, a link pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking plate, means for varying the eccentricity of the pivoting point of the link on the crank plate.

5.. An automatic machine for the manufacture of glass objects of the type. in which the glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor on this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable-of rotating on the said rocking plate about the same axis, means driven by the said motor and impa'; ting to the mould-carrier a continuous movement of rotation, a crank plate driven by the said motor, alink pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking plate, means for varying the'length of the said link, and

means for varying the eccentricity of the pivoting point of the link on the crank plate.

6. An automatic machine for the manufacture of glass objects of the type in which the plate.

glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor on this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, a first shaft driven by thesaid motor, a second shaft driven by the first shaft and causing the mould-carryingplate to continuously rotate, two Cardan joints respectively at the ends of the said second shaft, means allowing the latter to take, at every instant, during the movement, a variable length, a crank-plate driven by the said motor, a link pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking plate, means for r varying the length of the said link, and means for varying the eccentricity of the pivoting point of the link on the crank plate.

7. An automatic machine for the manufacture of glass objects of the type in which the glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor on this frame, a plate capable of rocking about an axis rigid wlth the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, a,first shaft driven by the said motor, a second shaft made of two elements respectively pivoted by a Cardan joint, one on the first shaft, the other on the mould-carrying plate, a tubular part terminating one of these elements and in which can "slide the end of the other element, an abutment on the latter, a spring interposed between this abutment and the tubular part, a crank-plate driven by the said motor, a link pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking plate, means for varying the length of the said link, and means'for varying the eccentricity of the pivoting point of the link on the crank 8. An automatic machine for the manufacture of glass objects of the type in which the glass is received by gravity in receivers, moulds and other vessels, comprising a frame, a fixed motor in this frame, a plate capable of rocking about an axis rigid with the frame, a mould-carrying plate supported by and capable of rotating on the said rocking plate about the same axis, a first worm on the shaft the worm wheel, the other on the mould-carrying plate, a tubular part terminating one of these elements and in which can slide the end of the other element, an abutment on the latter, a spring interposed between this abutment and the tubular part, a second worm on the'shaft of the motor, a second worm wheel gearlng with this worm, a crank plate rigid with this second worm wheel, alink pivoted, on the one hand, on the said crank plate, and, on the other hand, on the rocking late, means for varying the length of the said link and means for varying the eccentricity 0% the pivoting point of the link on the crank plate.

The foregoing specification of my improved machine for working glass signed by me this 27th day ofFebr'uary, 1931.

' EMILE ROIRANT 

